Home / 1,161,979.59-1,603,540.71-645,781.91

Finding the Fourth Proportional to 1,161,979.59, 1,603,540.71 and 645,781.91

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Solution

The fourth proportional to 1,161,979.59, 1,603,540.71 and 645,781.91 is: 891,183.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,979.59 : 1,603,540.71 = 645,781.91 : x
  2. Step 2: Convert to fraction form
    1,161,979.59/1,603,540.71 = 645,781.91/x
  3. Step 3: Cross multiply
    1,161,979.59x = 1,603,540.71 × 645,781.91
  4. Step 4: Simplify right side
    1,161,979.59x = 1,035,537,574,448.85
  5. Step 5: Solve for x
    x = 1,035,537,574,448.85/1,161,979.59
  6. Step 6: Final answer
    x = 891,183.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.